Nowadays, paper documents are still frequently used and exchanged in our daily life. To safely manage confidential paper information such as medical and financial records has increasingly become a challenge. If a patient's medical diagnosis get stolen or dumped without shredding, his or her private information would be leaked. Some companies and organizations do not pay enough attention to the problem, letting their customers suffer the loss. In the thesis, I designed a hybrid system to solve this problem effectively and economically. This hybrid system integrates physical document properties with digital security technology, which brings in a revolutionary idea for processing sensitive paper information in modern world. Based on that, I focus on different QR code sizes and versions, compare their attributes and relations, and find the best QR code size and version according to data amount in a given area. Finally I implement them in CryptoPaper word plugin, using several test cases to test the functionality of it.

This diploma thesis deals with system dynamics and its applications in the field of digitization of documents. This is an area whose importance is increasing. The need for the transfer and storage of digital documents at the present time there is a significant increase in the volume of data continues to grow. One of the appropriate tools of analysis digitization of documents is the system dynamics, which in the Czech Republic in the area of document digitization has not yet been used. The objective of this thesis is to create a system dynamics models for the area of document digitization, through the application of methods of system dynamics and then verify their applicability to specific data digitization projects acquired from practice. These models are universally applicable to virtually all types of projects to digitize documents. The main contribution of the thesis is the development of system dynamics models, which are universally applicable to a wide variety of projects to digitize documents and can be used to simulate the progress of digitization of documents. In practice, these models for companies dealing with digitization show the benefits of documents digitization to potential customers.